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本文根据各省市当前的省干网络结构,分析论证了面向TD-LTE和集团专线承载时,省干PTN组网建设的必要性及网络定位,并分模型分场景对省干PTN的网络组织及其与其他网络间的连接进行了对比分析,并提出应用建议。同时,本文结合LTE承载及集团专线承载的差异性提供了不同的保护方案,形成了系统的省干PTN建设指导,对当前省干PTN的建设有一定的参考价值。
Based on the current provincial backbone network structure of provinces and cities, this paper analyzes the necessity and network positioning of provincial-level PTN network construction for TD-LTE and group leased lines, and analyzes the network organization and Its connection with other networks were compared and analyzed, and made recommendations. At the same time, this paper provides different protection schemes based on the differences between LTE bearer and the group bearer. It has formed the guidance for the construction of provincial-level PTNs and has certain reference value for the current construction of provincial-level PTNs.